The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 1990
Filed:
Jan. 11, 1988
Applicant:
Inventors:
Tameo Iwasaki, Hishinomiya, JP;
Kohki Takashima, Tokyo, JP;
Assignee:
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514468 ; 549299 ;
Abstract
Naphthalene derivative of the formula: ##STR1## wherein R.sup.1 is hydrogen atom or a lower alkoxycarbonyl and R.sup.2 is a lower alkoxycarbonyl, or R.sup.1 and R.sup.2 are combined together to form a group of the formula: ##STR2## each of R.sup.3 and R.sup.4 is a lower alkoxy, or one of R.sup.3 and R.sup.4 is hydrogen atom and the other is a lower alkoxy, and